/* style.css - "Monochromatic Focus & Clarity" Design - Updated Subtle Footer Link */

/* --- CSS Variables --- */
:root {
    --color-text-mono: #111111; /* Near Black */
    --color-background-mono: #FFFFFF; /* Pure White */
    --color-accent-mono: #333333; /* Strong Grey for accents/headings */
    --color-border-mono: #CCCCCC; /* Light Grey for borders */
    --color-section-bg-mono: #F8F8F8; /* Very Light Grey for alternate sections */
    --color-link-hover-mono: #555555; /* Darker grey for link hover */
    
    /* System font stack for maximum performance */
    --font-family-mono: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif, system-ui;
    
    --container-max-width-mono: 980px; 
    --spacing-base-mono: 1rem; /* Approx 16px */
    --border-radius-mono: 0px; /* Sharp corners for minimalist/industrial */
}

/* --- Global Resets & Base --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; line-height: 1.6; }
body {
    font-family: var(--font-family-mono);
    color: var(--color-text-mono);
    background-color: var(--color-background-mono);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.main-content-mono { flex-grow: 1; }

.container-mono {
    width: 90%;
    max-width: var(--container-max-width-mono);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-base-mono);
    padding-right: var(--spacing-base-mono);
}

/* Accessibility: Skip Link */
.skip-link-mono { position: absolute; transform: translateY(-250%); left: 0.5rem; background: var(--color-accent-mono); color: var(--color-background-mono); padding: 0.5em 1em; z-index: 10001; text-decoration: none; transition: transform 0.3s ease-out; font-weight: 600; }
.skip-link-mono:focus { transform: translateY(0.5rem); }

/* Accessibility: Focus Styles */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
    outline: 2px solid var(--color-accent-mono);
    outline-offset: 2px;
    box-shadow: 0 0 0 2px rgba(51,51,51, 0.25);
}

/* --- Typography --- */
h1, h2, h3 {
    font-weight: 700; 
    line-height: 1.2;
    color: var(--color-accent-mono); 
    margin-bottom: calc(var(--spacing-base-mono) * 1.2);
}
h1 { font-size: clamp(1.8rem, 5vw, 2.4rem); letter-spacing: -0.5px; }
h2 { font-size: clamp(1.5rem, 4vw, 2rem); text-align: center; margin-bottom: calc(var(--spacing-base-mono) * 2); }
h3 { font-size: clamp(1.15rem, 3vw, 1.3rem); color: var(--color-text-mono); font-weight: 600; margin-bottom: calc(var(--spacing-base-mono) * 0.5); }

/* --- Header --- */
.site-header-mono {
    background-color: var(--color-background-mono);
    padding: calc(var(--spacing-base-mono) * 0.8) 0;
    border-bottom: 2px solid var(--color-accent-mono); 
}
.header-flex-mono { display: flex; justify-content: space-between; align-items: center; }
.logo-text-mono { font-size: clamp(1.3rem, 3.8vw, 1.6rem); font-weight: 700; color: var(--color-accent-mono); text-decoration: none; }
.header-phone-mono { font-size: clamp(0.95rem, 2.5vw, 1.1rem); font-weight: 600; color: var(--color-text-mono); text-decoration: none; border: 1px solid var(--color-border-mono); padding: 0.3rem 0.6rem; }
.header-phone-mono:hover { background-color: var(--color-section-bg-mono); color: var(--color-accent-mono); border-color: var(--color-accent-mono);}

/* --- Hero Section --- */
.hero-mono {
    background-color: var(--color-accent-mono); 
    color: var(--color-background-mono); 
    padding: calc(var(--spacing-base-mono) * 3) 0; 
    text-align: center;
}
.hero-mono h1 { color: var(--color-background-mono); }
.hero-subtitle-mono { font-size: clamp(1.05rem, 3vw, 1.2rem); margin-bottom: calc(var(--spacing-base-mono) * 1.8); max-width: 650px; margin-left: auto; margin-right: auto; opacity: 0.9; line-height: 1.55;}
.hero-actions-mono { margin-top: calc(var(--spacing-base-mono) * 1.5); }

/* --- Buttons --- */
.button-mono {
    display: inline-block;
    padding: calc(var(--spacing-base-mono) * 0.75) calc(var(--spacing-base-mono) * 1.5); 
    text-decoration: none;
    border-radius: var(--border-radius-mono);
    font-weight: 600; 
    transition: background-color 0.2s ease, color 0.2s ease, transform 0.15s ease-out, border-color 0.2s ease;
    cursor: pointer;
    border: 2px solid var(--color-accent-mono); 
    font-size: clamp(0.9rem, 2.5vw, 1rem);
    text-align: center;
    letter-spacing: 0.2px;
    text-transform: uppercase;
}
.button-primary-mono { 
    background-color: var(--color-accent-mono); 
    color: var(--color-background-mono); 
}
.button-primary-mono:hover, .button-primary-mono:focus {
    background-color: var(--color-text-mono); 
    border-color: var(--color-text-mono);
    color: var(--color-background-mono);
    transform: translateY(-1px);
}
.button-secondary-mono { 
    background-color: transparent;
    color: var(--color-accent-mono); 
}
.button-secondary-mono:hover, .button-secondary-mono:focus {
    background-color: var(--color-accent-mono);
    color: var(--color-background-mono);
}
.button-large-mono {
    font-size: clamp(1rem, 3vw, 1.15rem);
    padding: calc(var(--spacing-base-mono) * 0.9) calc(var(--spacing-base-mono) * 2);
}

/* --- Services Section --- */
.services-mono { padding: calc(var(--spacing-base-mono) * 3) 0; background-color: var(--color-section-bg-mono); }
.services-grid-mono { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: calc(var(--spacing-base-mono) * 1.2); }
.service-block-mono {
    background-color: var(--color-background-mono); 
    padding: calc(var(--spacing-base-mono) * 1.3);
    border: 1px solid var(--color-border-mono);
}
.service-block-mono p { font-size: clamp(0.9rem, 2.5vw, 0.95rem); line-height: 1.6; }

/* --- Why Choose Us Section --- */
.why-choose-us-mono { padding: calc(var(--spacing-base-mono) * 3) 0; background-color: var(--color-background-mono); }
.benefits-list-mono { 
    list-style: none; padding: 0; 
    max-width: 650px; margin: 0 auto calc(var(--spacing-base-mono) * 2) auto;
}
.benefits-list-mono li {
    font-size: clamp(0.95rem, 2.8vw, 1.05rem); 
    color: var(--color-text-mono); 
    margin-bottom: calc(var(--spacing-base-mono) * 0.6);
    padding: calc(var(--spacing-base-mono) * 0.5) 0;
    border-bottom: 1px solid var(--color-border-mono); 
}
.benefits-list-mono li:last-child { border-bottom: none; }
.why-cta-mono { text-align: center; }

/* --- Final CTA Section --- */
.cta-final-mono { padding: calc(var(--spacing-base-mono) * 3) 0; background-color: var(--color-accent-mono); color: var(--color-background-mono); text-align: center; }
.cta-final-mono h2 { color: var(--color-background-mono); }
.cta-final-mono p { font-size: 1.1rem; margin-bottom: calc(var(--spacing-base-mono) * 1.5); max-width: 600px; margin-left: auto; margin-right: auto; opacity: 0.95; }

/* --- Footer --- */
.site-footer-mono {
    background-color: var(--color-text-mono); 
    color: var(--color-background-mono);
    text-align: center;
    padding: calc(var(--spacing-base-mono) * 1.8) 0;
    margin-top: auto; 
    font-size: clamp(0.8rem, 2vw, 0.9rem);
}
.site-footer-mono p { margin-bottom: calc(var(--spacing-base-mono) * 0.3); opacity: 0.8; }
.footer-link-mono { 
    color: #A0A0A0; /* Light Grey for better contrast on black */
    text-decoration: none; 
    font-weight: 500; 
}
.footer-link-mono:hover { text-decoration: underline; }
.footer-nav-mono { margin-top: var(--spacing-base-mono); }

/* Updated Subtle Link Styling for maximum user inconspicuousness */
.footer-subtle-link-mono { 
    font-size: 0.6rem; /* Extremely small */
    color: #222222;     /* Very dark grey, almost matching #111111 footer bg if it was #111. 
                           If footer text is normally light (e.g. #A0A0A0), use a color slightly off that.
                           For current footer bg #111111 and main text #FFFFFF/#A0A0A0: */
    color: #333; /* This will be dark grey on a near-black background - still low contrast but technically different */
    /* A safer approach for blending with other footer text that is light: */
    /* color: #909090; */ /* If other footer text is #A0A0A0, this is slightly darker */
    text-decoration: none;
    opacity: 0.4;      /* Make it very faint */
    display: inline-block;
    padding: 1px 0;
    transition: opacity 0.2s ease;
}
.footer-subtle-link-mono:hover {
    opacity: 0.6;      /* Only very slightly less faint on hover */
    text-decoration: none; 
}
.footer-subtle-link-mono:focus-visible {
    opacity: 1;        
    text-decoration: underline; 
    color: var(--color-accent-mono); /* Use a theme accent color for focus */
    background-color: transparent; 
    outline: 1px dashed var(--color-accent-mono); 
    outline-offset: 1px;
}


/* --- Sticky CTA for Mobile --- */
.sticky-cta-mono-mobile {
    display: none; position: fixed; bottom: 0; left: 0; width: 100%;
    background-color: var(--color-accent-mono); color: var(--color-background-mono); text-align: center;
    padding: calc(var(--spacing-base-mono) * 0.9) 0; font-size: clamp(1rem, 3vw, 1.1rem); font-weight: 700;
    text-decoration: none; z-index: 1000; box-shadow: 0 -2px 5px rgba(0,0,0,0.1);
    text-transform: uppercase; letter-spacing: 0.5px;
}

/* --- Responsive Design Adjustments --- */
@media (max-width: 767px) {
    .header-flex-mono { flex-direction: column; text-align: center;}
    .logo-text-mono { margin-bottom: calc(var(--spacing-base-mono) * 0.5); }
    .sticky-cta-mono-mobile { display: block; }
    body { padding-bottom: 55px; } 
    h1 { font-size: clamp(1.6rem, 5vw, 2rem); }
    h2 { font-size: clamp(1.4rem, 4vw, 1.8rem); }
}